Hi All, Is anyone aware of a script that can generate the video preview images multi threaded and using the GPU? I have to regenerate my entire lib due to multi loss of HDDs in a raid. My lib is large and it will take a very very long time. I have 24 cores but the process only uses 1 core, single…

@Volts i’ll share the script once it is in an ok state. I am not sure on the jpeg encoding, I’ve never used ffmpeg before so I’m kinda guessing. I did try make it use the GPU encoding but it threw errors then i got a bit lost. What do you mean by creating the wrapper? I thought the Plex Transcoder…

I haven’t investigated how Plex turns the jpegs into a bif. I assume that’s correct. If you replaced the Plex Transcoder binary with a script, you could detect when Plex is extracting jpegs, and modify the command as desired. For all other activity, pass the commands to the original Plex Transcode…

Thinking about this, I bet Plex doesn’t use hardware acceleration for VPT extraction on purpose. Different hardware can support different numbers of concurrent transcodes, and Plex has a slot-based budgeting system in place for transcoding. I bet it just didn’t make sense to add these into that sa…

Ah, i see. I am using this script as a one-off initial load… Then i am happy to let plex do the work for new files… So prob not worth the effort creating a wrapper for what i need.

Yeah, but even with a single-threaded HW accel, the generation of the bif is much much faster.

Your standard for “raw/unpolished” is pretty high. That’s awesome.

lol, well it is only tested on my machine, required u to build a docker image for the biftool, works only with nvidia cards… but i am sure someone can figure out how to get the rest of it working for their purposes.

new script uploaded with some tweaks and bug fixed.

How did this end up working for you? It looks like the .bif format is stupidly simple, and here’s some python you could incorporate to pack the images into the .bif directly: https://github.com/bcl/HMS/blob/master/scripts/makebif.py https://github.com/popmedic/roku-buildbifs/blob/master/lib/p…

Script to regenerate video previews multi threaded?

Plex Media Server

stevezau April 19, 2022, 3:46am 15

I’ve created a script.

See here GitHub - stevezau/plex_generate_vid_previews: This is a script to manually generate Plex preview thumbnails

1 Like

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Script to regenerate video previews multi threaded?

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